★ Body Systems and Medical Sciences Quiz
What organ system produces hormones?
A. lymphatic
B. circulatory
C. endocrine
D. digestive
Select your answer:
Topics:
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Biology › Viewthe heart muscle is enclosed in the ……….. to protect it and facilitate its action
A. His fibers
B. left ventricle
C. right atrium
D. pericardium
Diseases and Preventions › View
What is a type of disease that can spread from one person to another?
A. Covid-19 or corona
B. A broken Foot
C. Heart disease
D. Bad breath